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What are the differences between IaaS, PaaS, and SaaS models of cloud storage?

Differences Between IaaS, PaaS, and SaaS Models of Cloud Storage

  1. IaaS (Infrastructure as a Service)

    • Definition: Provides virtualized computing resources over the internet, such as servers, storage, and networking. Users manage the operating system, applications, and data.
    • Example: A company rents virtual servers and storage from a cloud provider to host its own database and applications.
    • Tencent Cloud Service: Cloud Virtual Machine (CVM) and Cloud Block Storage (CBS) for scalable infrastructure.
  2. PaaS (Platform as a Service)

    • Definition: Offers a platform for developers to build, test, and deploy applications without managing the underlying infrastructure. The provider manages servers, storage, and runtime environments.
    • Example: A developer uses a PaaS platform to create a web app without worrying about server maintenance or OS updates.
    • Tencent Cloud Service: CloudBase for full-stack development and deployment.
  3. SaaS (Software as a Service)

    • Definition: Delivers software applications over the internet, accessible via a web browser. The provider manages everything, including infrastructure, platform, and software.
    • Example: Users access email (e.g., Gmail) or collaboration tools (e.g., Tencent Docs) directly from their browsers without installation.
    • Tencent Cloud Service: Tencent Meeting and Tencent Docs for ready-to-use software solutions.

Each model differs in control and management responsibilities, catering to varying user needs—from infrastructure management (IaaS) to application usage (SaaS).